Non Real Solutions Complex Numbers

Number pairs in the form a + bi and a - bi.

• imaginary number

• vertex

• complex conjugates

• radical expressions

8i is an example of a(n) ____.

• vertex

• residual

• radicand

• imaginary number

A discriminant value of ___ would indicate 2 non-real solutions.

• 0

• -14

• 6

• i

• -1

• 1

• -i

Solve.   x² = √-90

• x = 3√10

• x = 9i√10

• x = ± 3√10

• x = ± 3i√10

• 10
• -10
• 10i
• -10i

What is a complex number?

• A combination of a real number and an imaginary number

• A real number only

• An imaginary number only

• Any number you can think of

• 5i
• -5i
• 5+i
• -5

What letter usually represent imaginary number?

• a

• i

• j

• x